Abstract The Effects of raceway convexities on friction moment tapered roller bearings were studied in this paper. A new theoretical model torque was established considering the roughness and inner outer ring raceways. Friction between raceways analyzed under condition elastohydrodynamic lubrication. Based experiments, changes with respected to obtained. results show that decreases increase con...

Rolling bearings are considered to be rigid supports of a pinned nature. In fact, rolling develop displacements that depend on the external load and stiffness shaft which they supported. addition, tapered roller use preloading, has an additional effect in bearings. these affect internal deformations thus actual bearing. This paper presents methodology for determining loads bearings, taking into...

The fault quantification of a tapered roller bearing (TRB) can provide reliable guide for predictive maintenance. Currently, damage size estimation based on vibration signals has been proposed and developed. However, most approaches are focused the theory ball bearings. Unlike point contact bearing, between raceway is line contact. So, current practices micro-motion bearings limited when estima...

Rolling-element bearings are one of the most important elements when predicting noise rotating machinery. As a major connecting point between and non-rotating parts, their dynamic properties have to be accurately known. In this investigation we present bottom-up approach characterising dynamics rolling-element bearing. A special test device was designed built assess quality well-established ana...

In this study, the tapered roller bearing was adopted to explore effect of manganese phosphate coating on friction, wear, and lifespan bearings. Line friction samples with without a were prepared. The White Light Interferometry used analyze three-dimensional morphology roughness, Optimal Schwing–Reib–Verschleiss-5 multifunctional wear tester applied obtain tribological parameters before after a...

Abstract. This paper considers the modelling of wind turbine main bearings using analytical models. The validity simplified representations used in existing work is explored by comparing main-bearing force reactions with those obtained from higher-fidelity 3D finite-element Results indicate that there good agreement between and models case a non-moment-reacting support (such as for double-row s...